Emily's starting to make her intentions known, verbally which is good.
She's able to let us know she doesn't like something, which is better than nothing.
If we're reciting a song or a story to her and she's had enough, she'll start telling us "shh! shh! shh!". Likewise, she's started saying what sounds like "neesa" which we haven't fully understood yet, but believe it to be in the same vein - i.e. I don't like this and want it to stop.
Em's still communicating with more grunts than words, but telling us what she doesn't want is a step toward better communication.